Help regarding download from a URL in cpp
Hello All,
I want to download some content from a URL on server(videos/images).
I am not able to start. Please provide me some pointers from where to start.
Thanks in advance.
Could you please help me in locating the header files for this?
Hi ...
I tried compiling the first code...but it gave an error.
I am unable to figure out the error....
Could yo please help?
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[root@localhost examples]# ls
10-at-a-time.c curlx.c ftpgetinfo.c ghiper.c https.c Makefile.inc multi-single.c postit2.c sepheaders.c smtp-tls.c
anyauthput.c debug.c ftpgetresp.c hiperfifo.c imap.c Makefile.m32 multithread.c progressfunc.c simple.c synctime.c
cacertinmem.c evhiperfifo.c ftpupload.c htmltidy.c Makefile Makefile.netware opensslthreadlock.c README simplepost.c threaded-ssl.c
certinfo.c externalsocket.c ftpuploadresume.c htmltitle.cc Makefile.am multi-app.c persistant.c resolve.c simplesmtp.c url2file.c
chkspeed.c fileupload.c ftp-wildcard.c httpcustomheader.c makefile.dj multi-debugcallback.c pop3s.c rtsp.c simplessl.c version-check.pl
cookie_interface.c fopen.c getinfo.c http-post.c Makefile.example multi-double.c pop3slist.c sampleconv.c smooth-gtk-thread.c
curlgtk.c ftpget.c getinmemory.c httpput.c Makefile.in multi-post.c post-callback.c sendrecv.c smtp-multi.c
[root@localhost examples]#
[root@localhost examples]#
[root@localhost examples]#
[root@localhost examples]#
[root@localhost examples]# g++ -g 10-at-a-time.c
/tmp/ccl5BXnC.o: In function `init':
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:101: undefined reference to `curl_easy_init'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:103: undefined reference to `curl_easy_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:104: undefined reference to `curl_easy_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:105: undefined reference to `curl_easy_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:106: undefined reference to `curl_easy_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:107: undefined reference to `curl_easy_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:109: undefined reference to `curl_multi_add_handle'
/tmp/ccl5BXnC.o: In function `main':
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:122: undefined reference to `curl_global_init'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:124: undefined reference to `curl_multi_init'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:128: undefined reference to `curl_multi_setopt'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:135: undefined reference to `curl_multi_perform'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:142: undefined reference to `curl_multi_fdset'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:147: undefined reference to `curl_multi_timeout'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:176: undefined reference to `curl_easy_getinfo'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:178: undefined reference to `curl_easy_strerror'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:179: undefined reference to `curl_multi_remove_handle'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:180: undefined reference to `curl_easy_cleanup'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:172: undefined reference to `curl_multi_info_read'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:193: undefined reference to `curl_multi_cleanup'
/home/anubhav/curl-7.26.0/docs/examples/10-at-a-time.c:194: undefined reference to `curl_global_cleanup'
collect2: ld returned 1 exit status
[root@localhost examples]#
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What linker options do I need when I link with libcurl?
$ curl-config --libs
What compiler options do I need when I compile using libcurl functions?
$ curl-config --cflags
...
How do I build a single file with a one-line command?
$ `curl-config --cc --cflags` -o example example.c `curl-config --libs` |
http://curl.haxx.se/libcurl/using/curl-config.html
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